Photorelays rated to 5A replace industrial E-M relays

October 20, 2016 // By Graham Prophet
Toshiba Electronics has added three DIP8 package photorelays that can replace mechanical relays in industrial applications. With 5A large drive current they can be used in applications ranging from heating, ventilation and air conditioning (HVAC) systems to inverters, PLCs and automated test equipment (ATE).

A guaranteed pulsed ON-state current that is three times greater than that of the continuous ON-state current secures a margin for safety design. TLP3547 is a 60V product with 5A (max.) large drive current. The TLP3548 is a 400V product with a 0.4A (max) drive current that offers high-speed switching of 1 msec (max). The 600V TLP3549 is the first photorelay to utilise a super-junction structure ‘DTMOS’ MOSFET and delivers a 0.6A (max) drive current. All of these photorelays have a minimum isolation voltage rating of 2500 Vrms.

Toshiba Electronics Europe: www.toshiba.semicon-storage.com